rule308

Hi. Is there any way to change track numbers for wma files without manually opening each file and entering the new number? For instance, I have a large number of audio book files taken from a 48 CD collection that are ordered and numbered numerically by file name, but tagged by track numbers 1 through 12 from each of the original CDs. I would like to automatically number all the tracks from all the CD's in numeric order 1 through 576 so they will appear in proper order in my portable music player. I have several sets of CDs like this. If there is a program or method that would do this automatically, it would save a lot of work. Hope this isn't a stupid question. Any help or comments are appreciated...